2009
DOI: 10.1002/arch.20326
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Esterase‐based resistance in the tobacco‐adapted form of the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae) in the eastern United States

Abstract: Organophosphates and carbamates represent alternative insecticides in managing the tobacco-adapted form of the green peach aphid (TGPA), Myzus persicae (Sulzer), a major pest of tobacco in the United States and around the world. General esterases that detoxify these insecticides were assessed in green, red, and orange morphs of field-collected M. persicae. A total of 136 aphid colonies were collected from 2004 though 2007 and screened for total esterase activity. The green morphs had lower esterase levels, wit… Show more

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Cited by 24 publications
(28 citation statements)
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“…Second, increasing metabolic detoxification of toxicant target sites is a mechanism of resistance development (Brattsten et al ., ; Chen et al ., ). Esterases are frequently implicated in detoxification of organophosphates, carbamates, and pyrethroids by insects (Hemingway & Ranson, ; Srigriraju et al ., ). Detoxification of organophosphate insecticides is positively correlated with an increase in esterase activity (Doichuanngam & Thornhill, ; Sayyed & Wright, ), which is congruent with our results.…”
Section: Discussionsupporting
confidence: 91%
“…Second, increasing metabolic detoxification of toxicant target sites is a mechanism of resistance development (Brattsten et al ., ; Chen et al ., ). Esterases are frequently implicated in detoxification of organophosphates, carbamates, and pyrethroids by insects (Hemingway & Ranson, ; Srigriraju et al ., ). Detoxification of organophosphate insecticides is positively correlated with an increase in esterase activity (Doichuanngam & Thornhill, ; Sayyed & Wright, ), which is congruent with our results.…”
Section: Discussionsupporting
confidence: 91%
“…Insecticide resistance levels have been positively correlated with levels of detoxifying enzymes in several insect pests. In such cases, detoxifying enzymes have been explained as a mechanism of resistance 20, 27, 28. Although resistant populations of field‐collected adults and nymphs displayed significantly higher levels of detoxifying enzymes, detoxifying enzymes may not be the only mechanism of resistance in this case.…”
Section: Discussionmentioning
confidence: 98%
“…General esterase activity was measured using α‐naphthyl acetate (α‐NA) (Sigma Aldrich) as a substrate. General esterase activity was measured following a protocol14, 18–20 based on the amount of naphthol produced from the hydrolysis of naphtholic ester. Six aliquots of 15 µL of the enzyme solution and 135 µL of the 0.3 mM substrate were added to each well of the 96‐well microplate (NUNC PolySorp) (Fisher Scientific Co.).…”
Section: Methodsmentioning
confidence: 99%
“…Esterases are frequently implicated in the resistance of insects to organophosphates, carbamates, and pyrethroids (Hemingway and Ranson 2000, Srigiriraju et al 2009). In a previous study, the resistances to organophosphate and indoxacarb pesticides were found to be positively correlated with an increase in esterase activity (Doichuanngam and Thornhill 1989; Sayyed and Wright 2006), which is congruent with our study.…”
Section: Discussionmentioning
confidence: 99%